Method of handling spun cakes for transport



8, 3 I w. SCHULZ ET AL 1,835,904

METHOD OF HANDLING SPUN CAKES FOR TRANSPORT Filed Aug. 50, 1929 2 Shets-Sheet 1 Dec. 8, 1931. w, SCHULZ 17 AL 7 I 1,835,904

METHOD OF HANDLING SPUN CAKES FOR TRANSPORT Filed Aug. 30, 1929 v I 2 Sheets-Sheet 2 Patented Dec. 8, 1931 UNITED STATES PATENT OFFICE v WALTER SCHULZ AND HELLMUT HOFFMANN, OF SYDOWSAUE, NEAR STETTIN,

GERMANY, ASSIGNOBS, BY MESNE ASSIGNMENTS, TO AMERICAN GLANZSTOFF O03- PORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE 7 METHOD OF HANDLING SPUN CAKES FOR TRANSPORT Application filed August 30, 1929, Serial No. 389,603, and in Germany January 13, 1929.

The primary object of the present invention is to provide an improved method of handling the so-called cakes of spun artificial silk which are used in factories, located at other. places.

The transport of freshly spun condition or after cleansing, otherwise subsequently treating and,-it may be drying entails no special .difliculties so long as only short distances are involved such as occur in the works. In many cases the well known stiffening rings are left sticking in the cakes for the purposes of transport.

When, however, they are sent away from the factory and have to travel long distances, these stiffening rings or corresponding inserted sleeve do not afford the necessary degree of safety and convenience. In the first place, these inner spool-like stiffening rings do not sufiiciently protect the spun cake externally and at the ends from injury and shifting of the threads. On the other hand, cakes in this form are far too bulky for transport, as the hollow spaces within the said cakes are wholly unutilized while the external circular form does not permit of rational utilization of packing space.

' It has now been found that the packing and transport, even over great distances, of the spun cakes (washed as far as is necessary, decopperized ordesulphurized, according to the mode of manufacture, bleached, subsequently treated dyed "if necessary washed again, but in any case dried or dry) can be effected in a much more advantageous manner if the cakes be given a definite form departing from the usual ring.

The preferred methods of shaping and packing the cakes are illustrated in the accompanying drawings wherein- Figure ,1 is a perspective view of the usual shape in which the cakes are formed;

Fig. 2 shows a perspective view of a cake when flattened out. 3

Fig. 3 shows in transverse section a' method of stretching a round cake into a flat hank.

Figs. 4, 4a and 4b show, respectively, a

front elevation, a top plan and a transverse section, of a type of device for stretching a round cake into flat hank form.

such cakes, whether in a Fig. 4c shows a convenient manner of lacin the cakes. v I

igs. 5, 6, 7, 8 and 9 show various ways in which the flattened hanks may be packed for transporting. I

A kind" of flat hank shape has been found to be best, such as is produced when the round cake is shown in Figure 1 is flattened out by directly s ueezing it together to the form shown in ig. 2.

The deformation maybe efl'ected either. by squeezin the cake together at the sides or by stretc ing it out radially into a flat hank by means of two'inserted ends. The pulling out or stretching of the cakes into a fiat hank may conveniently be efi'ected'mechanically by-putting the cake is shown in Figure 3 over two bolts which are then moved apart parallel to each other by means of screw gearing or lever mechanism, thus drawing out the caketo the desired stretched,

'hanklike shape 8 shown in] Figure 4.

It has been found convenient to bind thecakes round, either before orafter they are stretched out into hank form with a system of lacing threads, as shown in Fig. 4c,

The retention of he desired form of the cake may, it has been found, also be assured in an original manner by treatin the cake with a sleeking composition whlch causesthe threads to adhere to each other; For

consist solely t ereof.v The sleeking solu-.

tion or emulsion is not made too strong but only just strong enough to secure a useful degree of mutual adhesion between the threads. Such adhesion. takes place even if only comparatively thin sleeking solutions be used, which do not stick the cakes up to. such arr-extent as to interfere with the .sub-.

' sequent unwinding thereof, The sleeking of the cakes when carried out within modest limits has even been found advantageous in unwinding, as the single threads are thereby rendered less liable to drop. The cakes may now be packed singly and in doing so care must be taken that when packed and transported they do not lose the aforesaid desired compressed, hank-like form ,8. F or this purpose they are laid as shown in Figure 5 between two stiiiening plates (2 and b which are corded up together with the cakes or held together in any manner under pressure. Between these stifiening plates neither the cake hank as a whole, no the single layers of thread, nor the in dividual threads can shift. Instead of two ,separate stifiening plates a single stifiening The various small parcels thus formed may then conveniently be packed together into larger bundles or placed in pasteboard boxes and these then packed in the usual cases.

Instead of packing each cake separately it has been found very convenient to pile them column-wise one on top of another (as shown in Figural), for example) in apasteboard-box p or the like. convenient to lay a sheet of paper q or a sheet of cardboard or the like in between the several cakes 8. ''When the cakes are placed in a pasteboard box or other solid envelope of i that kind, it is advantageous to line the interior thereof with tissue paper 0 or oiled paper or the like.

and it may be, placed in the pasteboard box At the foot of the pile and at the top thereof a thicker sheet of cardboard or even a thin wooden sheet h or the like may be used which may extend either over one pile or simultaneously over several piles. In either case thesesheets prevent the deformation of I the piles when tying them up and they may,

in some cases, simultaneously hold a number 1 of pilestogether. The pile or piles so formed,

are subjected to pressure from above and, if

necessary, tied up under. this pressure with the" pasteboard box.

in this parcel neither the several spun cakes-pressed together nor in-, dividual threads can shift thus, when the parcpl is opened after transport they are found to have-remained still in the same position as whenpacked.

It has been found and is worthy of particulln such case it is place where thread neaaeoa again inserted, after which the thread may be drawn ofi' endwise in the well known manner, whether it be for transference to reels in the hank form or for winding onto cross wound bobbins, bottle shaped bobbins, cops or the like.

Again, a reel-like supporting device may, be inserted in the flat cake hanks and the cake hank wound ofi tangentially by rotating it, like an ordinary hank. This novel mode of winding ofi spuncakes has been found to be specially advantageous for the purpose of dealing with spun cakes handled by the methods of thapresent in vention.

What we claim is 1. A method for treating purified and dried spun cakes ofartificial' silk, which are used in distant factories consisting in subjecting the annular cake to stretching along one diameter thereof until the cake assumes the form of a substantially flat hank and transterring the hank so formed to a place where thread withdrawn from the cake. 1 2; The method according to claim 1, wherein two rods inserted in the central opening of theannular cake are moved apart, while maintaining them parallel until the cake has been stretched and has assumed aha nk-like shape. L r

3. A method of treating purified and dried spun cakes of artificial silk, which are used in distant factories consisting in securing the mutual position of the threads therein,

causing the annular cake to be expanded in one diametra-l direction until the cake as sumes the form of a substantially flat bank of a substantially flat hank and transferring the hank so formed to a place where thread iswithdrawn from the cake.

5. A method of treating purified and dried spun cakesof artificial silk, which are used in distant factories consisting in causing the annular cake to be expanded in one diametral direction until the cake assumes the formof a substantially flat hank, lacing such hank with threads andtransferring the hank toa cake,

is withdrawn from the 6.- A method of handling a spun cake of artificial silk said method consisting in treating the purified cake to secure partial adhesion of the threads therein, drylng the cake,

causing the annular cake to be expanded in one diametral direction until the cake as-,

a substantial fiat hank and transferring the hank so formed to a place where thread is withdrawn from the cake.

8. A" method of handling a spun cake of artificial silk said method consisting in causing the dried annular cake to be expanded in one diametral direction until the cake assumes the form of a substantially fiat hank, compressing the hank, packing the same, transferring the hank in compressed =packed condition 'to a place where thread is to be withdrawn from the cake and unpacking and relieving the pressure before subjecting the thread in the hank to further operations.

9. A method of handling a spun cake of artificial silk said method consisting in treating the cake to secure the mutual position of the threads therein, causingthe dried annular cake to be expahded in one diametral direction until the cake assumes the form of a substantially flat hank, compressing and packing said hank. transferring the hank in compressed packed condition to a place where thread is to be withdrawn from the cake and unpacking and relieving the 'pressure before subjecting the thread in, the hank 1 to a place where the thread is tobe further- .handled, unpacking and decompressing the to further operations.

to claim 8 10. The method according wherein a plurality of prepared hanks are arranged side by side between common pack-- ing members through which pressure is applied .simultaneously to all ofsuch hanks before the same are packed.

11. A method of handling spun cakes of artificial silk, said method consisting in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to-be expanded in one diametral direction until the cake assumes the form of a substantially flat hank, compressing each hank so formed between stifi'ening members,-

packing a pluralitymf such compressed hanks together columnwise 1n :1 container, transporting said container to'a place where the" thread is to be further handled, unpacking and (decompressing thehanks and subsequently transferringthe thread from each bank tg'thread carrying means.

'a substantially fiathank, compressing each 12. A method of handling spun cakes of artificial silk, said method consisting in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to be expanded in one diametral direction until the cake assumes the form of a substantially flat hank, compressing each hank so formed between stifieningmembers,

packing 'a plurality of such compressed anks together columnwise in a container, transporting. said container to a place where i the thread is to be further handled, unpacking and. decompressing the hanks, mounting each hank on a hank carrying, device and subsequently transferring the thread from each hank to thread carrying means.

13. A method of handling spun cakes of artificial silk, said method consisting in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to be expanded in onediametral direction until the cake assumes the, form of a substantially fiat hank, compressing each hank, packing a plurality of such compressed hanks together columnwise with-interposed protecting sheets in a protectively lined container, transporting said contaiher to a place where the thread is to be further handled.

unpacking and decompressing the hanks and subsequently, transferring the thread from each hank to thread carrying means. I

14. A method-of handlingspun cakes oi artificial silk, said method consistingxin treat- 7 ing t-he cake to secure the mutual position of the threads therein, causing thedried annular cake to be expanded in. one diametral direction until the cake assumes theform of. a substantially flat hank, 'compressingeach hank, packing a plurality of such compressed" hanks together columnwise with interposed protecting sheets and with stout top and bottom stifl'ening sheets in a protectively lined' container, transportin said container hanks and subsequently transferring the thread .from each hank to thread carrying means. 15. A method of handling spun cakes o artificial silk, said method consisting. in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to be expanded in one diametral direction until the-cake assumes the form of hank, packing 'aplurality of such compressed hanks together columnwise with insubsequently transferring the thread from 130 each hank to threadcarrying means.

: into a pile with interposed protective sheets,

stout top and bottom stiffening plates and a covering protecting the edges of the hanks, transporting the bundle so formed to a place Where the thread is to be further handled,

unpacking the hanks and expanding them substantially to the-original annular cake shape and finally withdrawingthread from each cake on to another carrier device.

17. A method of handling spun cakes of artificial silk, said method consisting in treating the cake to secure the mutual position of the threads therein, causing tire dried annular cake to be expanded in one diametral direction until the cake assumes the form of asubstantially flat hank, compressing each hank, compressing a plurality of such hanks into a pile with interposed protective sheets,

stout top and bottom stifiening lates' and a covering protecting the edges the hanks, transporting the bundle so formed to aplace where the thread is to be further handled, unpacking the hanks and expanding them substantially to the original annular cake shape,

mounting each annular cake so formed on a stiitening carrier and finally withdrawlng thread from each cake on to-another carrier device.

18. Amethod of handling spun cakes of artificial silk, said method consisting in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to be expanded in one diametral direction until the cake assumes the form of aeaaeoa transporting the bundle so formed to a place where the thread is to be further handled, v

unpacking the hanks and expanding them substantially to the original annular cake shape, mounting each annular cake so formed on a reel-like supporting device and Withdrawing thread tangentially by rotating.

20. A method of handling spun cakes of artificial silk said method consisting in treating the cake to secure the mutual position of the threads therein, causing the dried annular cake to be expanded in one diametral direction until the cake assumes the form of a substantially flat hank, compressing each hank, compressing a plurality of such hanks into a protectively lined container with interposed protective sheets and stout top and bottom stifiening plates, transporting the bundle so formed to a place where the thread is to be further handled, unpacking the hanks and mounting each hank on a reellike supporting device and withdrawing thread, tangentially by rotating.

I In witness whereof, we have hereunto signed our names. W WALTER SCHULZ.

HELLMUT HUFFMANN;

till

stout top and bottom stiflening lates and a covering protecting the edges 0 the hanks, transporting the-bundle so formed to a place where the thread is to' be further handled, unpacking the hanks and expanding them substantially to the original annular cake shape, mounting each annular cake so formed on a stiffening cylindrical carrier and finally withdrawing thread endwise from each cake on to another carrier device.

19. A method of handling spun cakes of artificial silk, said method. consisting in treating the cake to secure the m tual position of the threads therein, causi the dried annular cake to be expanded in one diametral direction until the cakeassume's the form of a substantially fiat hank, compressing each,

hank, compressing a plurality of such hanks into a pile with interposed protective sheets, stout-top and bottom stifiening plates and a 

